<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
</head>
<body>
<p>Hello World 1</p>
<p>Hello World 2</p>
<script>
    d3.select("body").selectAll("p").text("www.ourd3js.com");
</script>
</body>
</html>